Explaining the Formula E=hf for Planck's Constant

[nvidia17]

Could someone explain the formula:
E=hf

I don't understand what the h signifies or what the formula it is used for specifically. I searched this on wikipedia but the information is too complicated for me.

 

[andrewchang]

it's a constant that relates energy and frequency of a wave.

 

[Tide]

BTW, it's Planck and not "plank."

 

[brewnog]

Planck's constant (h) is simply a constant (duh) which relates the energy with the frequency of an electromagnetic wave.